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SoGLUpdateAreaElement.h
00001 #ifndef COIN_SOGLUPDATEAREAELEMENT_H
00002 #define COIN_SOGLUPDATEAREAELEMENT_H
00003 
00004 /**************************************************************************\
00005  *
00006  *  This file is part of the Coin 3D visualization library.
00007  *  Copyright (C) by Kongsberg Oil & Gas Technologies.
00008  *
00009  *  This library is free software; you can redistribute it and/or
00010  *  modify it under the terms of the GNU General Public License
00011  *  ("GPL") version 2 as published by the Free Software Foundation.
00012  *  See the file LICENSE.GPL at the root directory of this source
00013  *  distribution for additional information about the GNU GPL.
00014  *
00015  *  For using Coin with software that can not be combined with the GNU
00016  *  GPL, and for taking advantage of the additional benefits of our
00017  *  support services, please contact Kongsberg Oil & Gas Technologies
00018  *  about acquiring a Coin Professional Edition License.
00019  *
00020  *  See http://www.coin3d.org/ for more information.
00021  *
00022  *  Kongsberg Oil & Gas Technologies, Bygdoy Alle 5, 0257 Oslo, NORWAY.
00023  *  http://www.sim.no/  sales@sim.no  coin-support@coin3d.org
00024  *
00025 \**************************************************************************/
00026 
00027 #include <Inventor/elements/SoSubElement.h>
00028 #include <Inventor/SbVec2f.h>
00029 #include <Inventor/SbVec2s.h>
00030 
00031 class COIN_DLL_API SoGLUpdateAreaElement : public SoElement {
00032   typedef SoElement inherited;
00033 
00034   SO_ELEMENT_HEADER(SoGLUpdateAreaElement);
00035 public:
00036   static void initClass(void);
00037 protected:
00038   virtual ~SoGLUpdateAreaElement();
00039 
00040 public:
00041   virtual void init(SoState * state);
00042   virtual void push(SoState * state);
00043   virtual void pop(SoState * state,
00044                    const SoElement * prevTopElement);
00045 
00046   virtual SbBool matches(const SoElement * element) const;
00047   virtual SoElement * copyMatchInfo() const;
00048 
00049   static void set(SoState * const state, const SbVec2f & origin,
00050                    const SbVec2f & size);
00051 
00052   static SbBool get(SoState * const state, SbVec2f & origin,
00053                     SbVec2f & size);
00054 
00055   static SbVec2f getDefaultOrigin();
00056   static SbVec2f getDefaultSize();
00057 
00058 protected:
00059   SbVec2f origin;
00060   SbVec2f size;
00061 
00062 private:
00063   SbBool isDefault(void) const;
00064   void updategl(void);
00065   SbBool scissorstate;
00066   SbVec2s screenorigin, screensize;  
00067 };
00068 
00069 #endif // !COIN_SOGLUPDATEAREAELEMENT_H

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